Manisha K.

Senior Full-Stack Developer | React | Next.js | TypeScript | Node.js I am a Senior Full-Stack Developer specializing in building modern, scalable, high-performance web applications and digital products for startups, businesses, and growing companies. With 10+ years of professional development experience, I focus on creating clean, maintainable, and user-friendly applications that perform reliably across devices and browsers. From MVPs and SaaS platforms to eCommerce stores, marketplaces, booking systems, and custom business applications, I can handle both frontend and backend development and help take your product from concept to production. 🚀 Core Technical Expertise Frontend React.js Next.js TypeScript JavaScript / ES6+ HTML5 / CSS3 Responsive & Progressive Web Applications Modern UI development State management API integrations Performance optimization Backend Node.js REST APIs API integrations Authentication & authorization Database-driven applications Server-side development Real-time application features Desktop & Specialized Development Electron.js Slate.js Rich-text editors Cross-platform applications 💻 What I Build I develop complete digital products and custom applications, including: SaaS platforms Business management applications eCommerce platforms Online marketplaces Subscription-based platforms Appointment & booking systems Customer portals Admin dashboards Healthcare & wellness applications Internal business tools Progressive Web Apps (PWAs) Responsive web applications Custom API-driven platforms ⚡ What You Can Expect I focus on building applications that are: Fast & High-Performance — optimized for speed, responsiveness, and scalability Responsive — designed to work seamlessly across desktop, tablet, and mobile Cross-Browser Compatible — tested across modern browsers and devices Scalable — structured to support future features and business growth Maintainable — clean, organized, and easy to extend User-Focused — intuitive interfaces with a strong focus on usability Secure — following modern development and authentication practices 🛠️ How I Can Help Whether you need to build a product from scratch or improve an existing application, I can help with: New web application development React & Next.js development Full-stack application development SaaS MVP development Existing application modernization API development & integrations Performance optimization Bug fixing & troubleshooting Feature development Third-party service integrations Application maintenance and support Codebase improvements and refactoring 🏢 Experience Across Business Models I've worked on solutions for a variety of business requirements, including: eCommerce — product catalogs, shopping carts, payments, orders, and customer management Marketplaces — multi-user platforms, listings, transactions, profiles, and dashboards Subscriptions — recurring billing, membership systems, plans, and account management Healthcare & Fitness — appointment scheduling, wellness platforms, fitness applications, and user portals Booking Platforms — online appointments, scheduling, availability, and notifications Business Applications — custom workflows, dashboards, reporting, and operational tools 🤝 Why Work With Me? I believe successful development is about more than delivering code. It's about understanding what you're trying to achieve, choosing the right technical approach, and delivering a solution that can grow with your business. You can expect: Clear and proactive communication Reliable project delivery Attention to detail Flexible collaboration Transparent development process Long-term technical support Commitment to project timelines and quality Whether you have a new product idea, an existing application that needs improvement, or a complex feature that needs to be built, I can help turn it into a reliable, production-ready solution.